Massage therapy combined with core muscle training for the treatment of chronic nonspecific low back pain in sedentary individuals

INTERVENTION: Experimental Group:Massage Preprocessing + Core Muscle Training;Control Group:Core Muscle Group Training; CONDITION: Chronic non‐specific low back pain in sedentary individuals PRIMARY OUTCOME: Pain Visual Analogue Scale; SECONDARY OUTCOME: Roland‐Morris Disability Questionnaire;Biomechanical characteristics of erector spinae;Dynamic strength, explosive power, and endurance of the lumbar flexor and extensor muscle groups;pressure pain threshold;Fear‐Avoidance Beliefs Questionnaire;Long‐term recurrence rate;Plasma biomarkers Transforming Growth Factor‐beta 1 (TGF‐ß1) and Core Protein Glycosaminoglycan (Decorin); INCLUSION CRITERIA: (1) Aged between 20 and 60 years old, with no restriction on gender. (2) Meets the CNLBP diagnostic criteria. (3) Low back pain Visual Analog Scale (VAS) score =3 points (on a 0‐10 scale). (4) No systematic physical therapy (e.g., massage, acupuncture) or core muscle training in the past 4 weeks. (5) Possesses normal cognitive, understanding, and communication abilities. (6) Voluntarily participates in this study and signs a written informed consent form.